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How to use plugins method of plugin Package

Best Gauge code snippet using plugin.plugins

loader.go

Source:loader.go

...17	logging "github.com/ipfs/go-log"18	opentracing "github.com/opentracing/opentracing-go"19)20var preloadPlugins []plugin.Plugin21// Preload adds one or more plugins to the preload list. This should _only_ be called during init.22func Preload(plugins ...plugin.Plugin) {23	preloadPlugins = append(preloadPlugins, plugins...)24}25var log = logging.Logger("plugin/loader")26var loadPluginFunc = func(string) ([]plugin.Plugin, error) {27	return nil, fmt.Errorf("unsupported platform %s", runtime.GOOS)28}29type loaderState int30const (31	loaderLoading loaderState = iota32	loaderInitializing33	loaderInitialized34	loaderInjecting35	loaderInjected36	loaderStarting37	loaderStarted38	loaderClosing39	loaderClosed40	loaderFailed41)42func (ls loaderState) String() string {43	switch ls {44	case loaderLoading:45		return "Loading"46	case loaderInitializing:47		return "Initializing"48	case loaderInitialized:49		return "Initialized"50	case loaderInjecting:51		return "Injecting"52	case loaderInjected:53		return "Injected"54	case loaderStarting:55		return "Starting"56	case loaderStarted:57		return "Started"58	case loaderClosing:59		return "Closing"60	case loaderClosed:61		return "Closed"62	case loaderFailed:63		return "Failed"64	default:65		return "Unknown"66	}67}68// PluginLoader keeps track of loaded plugins.69//70// To use:71// 1. Load any desired plugins with Load and LoadDirectory. Preloaded plugins72//    will automatically be loaded.73// 2. Call Initialize to run all initialization logic.74// 3. Call Inject to register the plugins.75// 4. Optionally call Start to start plugins.76// 5. Call Close to close all plugins.77type PluginLoader struct {78	state   loaderState79	plugins map[string]plugin.Plugin80	started []plugin.Plugin81	config  config.Plugins82	repo    string83}84// NewPluginLoader creates new plugin loader85func NewPluginLoader(repo string) (*PluginLoader, error) {86	loader := &PluginLoader{plugins: make(map[string]plugin.Plugin, len(preloadPlugins)), repo: repo}87	if repo != "" {88		cfg, err := cserialize.Load(filepath.Join(repo, config.DefaultConfigFile))89		switch err {90		case cserialize.ErrNotInitialized:91		case nil:92			loader.config = cfg.Plugins93		default:94			return nil, err95		}96	}97	for _, v := range preloadPlugins {98		if err := loader.Load(v); err != nil {99			return nil, err100		}101	}102	if err := loader.LoadDirectory(filepath.Join(repo, "plugins")); err != nil {103		return nil, err104	}105	return loader, nil106}107func (loader *PluginLoader) assertState(state loaderState) error {108	if loader.state != state {109		return fmt.Errorf("loader state must be %s, was %s", state, loader.state)110	}111	return nil112}113func (loader *PluginLoader) transition(from, to loaderState) error {114	if err := loader.assertState(from); err != nil {115		return err116	}117	loader.state = to118	return nil119}120// Load loads a plugin into the plugin loader.121func (loader *PluginLoader) Load(pl plugin.Plugin) error {122	if err := loader.assertState(loaderLoading); err != nil {123		return err124	}125	name := pl.Name()126	if ppl, ok := loader.plugins[name]; ok {127		// plugin is already loaded128		return fmt.Errorf(129			"plugin: %s, is duplicated in version: %s, "+130				"while trying to load dynamically: %s",131			name, ppl.Version(), pl.Version())132	}133	if loader.config.Plugins[name].Disabled {134		log.Infof("not loading disabled plugin %s", name)135		return nil136	}137	loader.plugins[name] = pl138	return nil139}140// LoadDirectory loads a directory of plugins into the plugin loader.141func (loader *PluginLoader) LoadDirectory(pluginDir string) error {142	if err := loader.assertState(loaderLoading); err != nil {143		return err144	}145	newPls, err := loadDynamicPlugins(pluginDir)146	if err != nil {147		return err148	}149	for _, pl := range newPls {150		if err := loader.Load(pl); err != nil {151			return err152		}153	}154	return nil155}156func loadDynamicPlugins(pluginDir string) ([]plugin.Plugin, error) {157	_, err := os.Stat(pluginDir)158	if os.IsNotExist(err) {159		return nil, nil160	}161	if err != nil {162		return nil, err163	}164	var plugins []plugin.Plugin165	err = filepath.Walk(pluginDir, func(fi string, info os.FileInfo, err error) error {166		if err != nil {167			return err168		}169		if info.IsDir() {170			if fi != pluginDir {171				log.Warnf("found directory inside plugins directory: %s", fi)172			}173			return nil174		}175		if info.Mode().Perm()&0111 == 0 {176			// file is not executable let's not load it177			// this is to prevent loading plugins from for example non-executable178			// mounts, some /tmp mounts are marked as such for security179			log.Errorf("non-executable file in plugins directory: %s", fi)180			return nil181		}182		if newPlugins, err := loadPluginFunc(fi); err == nil {183			plugins = append(plugins, newPlugins...)184		} else {185			return fmt.Errorf("loading plugin %s: %s", fi, err)186		}187		return nil188	})189	return plugins, err190}191// Initialize initializes all loaded plugins192func (loader *PluginLoader) Initialize() error {193	if err := loader.transition(loaderLoading, loaderInitializing); err != nil {194		return err195	}196	for name, p := range loader.plugins {197		err := p.Init(&plugin.Environment{198			Repo:   loader.repo,199			Config: loader.config.Plugins[name].Config,200		})201		if err != nil {202			loader.state = loaderFailed203			return err204		}205	}206	return loader.transition(loaderInitializing, loaderInitialized)207}208// Inject hooks all the plugins into the appropriate subsystems.209func (loader *PluginLoader) Inject() error {210	if err := loader.transition(loaderInitialized, loaderInjecting); err != nil {211		return err212	}213	for _, pl := range loader.plugins {214		if pl, ok := pl.(plugin.PluginIPLD); ok {215			err := injectIPLDPlugin(pl)216			if err != nil {217				loader.state = loaderFailed218				return err219			}220		}221		if pl, ok := pl.(plugin.PluginTracer); ok {222			err := injectTracerPlugin(pl)223			if err != nil {224				loader.state = loaderFailed225				return err226			}227		}228		if pl, ok := pl.(plugin.PluginDatastore); ok {229			err := injectDatastorePlugin(pl)230			if err != nil {231				loader.state = loaderFailed232				return err233			}234		}235	}236	return loader.transition(loaderInjecting, loaderInjected)237}238// Start starts all long-running plugins.239func (loader *PluginLoader) Start(node *core.IpfsNode) error {240	if err := loader.transition(loaderInjected, loaderStarting); err != nil {241		return err242	}243	iface, err := coreapi.NewCoreAPI(node)244	if err != nil {245		return err246	}247	for _, pl := range loader.plugins {248		if pl, ok := pl.(plugin.PluginDaemon); ok {249			err := pl.Start(iface)250			if err != nil {251				_ = loader.Close()252				return err253			}254			loader.started = append(loader.started, pl)255		}256		if pl, ok := pl.(plugin.PluginDaemonInternal); ok {257			err := pl.Start(node)258			if err != nil {259				_ = loader.Close()260				return err261			}262			loader.started = append(loader.started, pl)263		}264	}265	return loader.transition(loaderStarting, loaderStarted)266}267// StopDaemon stops all long-running plugins.268func (loader *PluginLoader) Close() error {269	switch loader.state {270	case loaderClosing, loaderFailed, loaderClosed:271		// nothing to do.272		return nil273	}274	loader.state = loaderClosing275	var errs []string276	started := loader.started277	loader.started = nil278	for _, pl := range started {279		if closer, ok := pl.(io.Closer); ok {280			err := closer.Close()281			if err != nil {...

plugins.go

Source:plugins.go

2import (3	"reflect"4	"strings"5)6// Message represents data accross plugins7type Message struct {8	Meta []byte // metadata9	Data []byte // actual data10}11// PluginReader is an interface for input plugins12type PluginReader interface {13	PluginRead() (msg *Message, err error)14}15// PluginWriter is an interface for output plugins16type PluginWriter interface {17	PluginWrite(msg *Message) (n int, err error)18}19// PluginReadWriter is an interface for plugins that support reading and writing20type PluginReadWriter interface {21	PluginReader22	PluginWriter23}24// InOutPlugins struct for holding references to plugins25type InOutPlugins struct {26	Inputs  []PluginReader27	Outputs []PluginWriter28	All     []interface{}29}30// extractLimitOptions detects if plugin get called with limiter support31// Returns address and limit32func extractLimitOptions(options string) (string, string) {33	split := strings.Split(options, "|")34	if len(split) > 1 {35		return split[0], split[1]36	}37	return split[0], ""38}39// Automatically detects type of plugin and initialize it40//41// See this article if curious about reflect stuff below: http://blog.burntsushi.net/type-parametric-functions-golang42func (plugins *InOutPlugins) registerPlugin(constructor interface{}, options ...interface{}) {43	var path, limit string44	vc := reflect.ValueOf(constructor)45	// Pre-processing options to make it work with reflect46	vo := []reflect.Value{}47	for _, oi := range options {48		vo = append(vo, reflect.ValueOf(oi))49	}50	if len(vo) > 0 {51		// Removing limit options from path52		path, limit = extractLimitOptions(vo[0].String())53		// Writing value back without limiter "|" options54		vo[0] = reflect.ValueOf(path)55	}56	// Calling our constructor with list of given options57	plugin := vc.Call(vo)[0].Interface()58	if limit != "" {59		plugin = NewLimiter(plugin, limit)60	}61	// Some of the output can be Readers as well because return responses62	if r, ok := plugin.(PluginReader); ok {63		plugins.Inputs = append(plugins.Inputs, r)64	}65	if w, ok := plugin.(PluginWriter); ok {66		plugins.Outputs = append(plugins.Outputs, w)67	}68	plugins.All = append(plugins.All, plugin)69}70// NewPlugins specify and initialize all available plugins71func NewPlugins() *InOutPlugins {72	plugins := new(InOutPlugins)73	for _, options := range Settings.InputDummy {74		plugins.registerPlugin(NewDummyInput, options)75	}76	for range Settings.OutputDummy {77		plugins.registerPlugin(NewDummyOutput)78	}79	if Settings.OutputStdout {80		plugins.registerPlugin(NewDummyOutput)81	}82	if Settings.OutputNull {83		plugins.registerPlugin(NewNullOutput)84	}85	for _, options := range Settings.InputRAW {86		plugins.registerPlugin(NewRAWInput, options, Settings.RAWInputConfig)87	}88	for _, options := range Settings.InputTCP {89		plugins.registerPlugin(NewTCPInput, options, &Settings.InputTCPConfig)90	}91	for _, options := range Settings.OutputTCP {92		plugins.registerPlugin(NewTCPOutput, options, &Settings.OutputTCPConfig)93	}94	for _, options := range Settings.InputFile {95		plugins.registerPlugin(NewFileInput, options, Settings.InputFileLoop)96	}97	for _, path := range Settings.OutputFile {98		if strings.HasPrefix(path, "s3://") {99			plugins.registerPlugin(NewS3Output, path, &Settings.OutputFileConfig)100		} else {101			plugins.registerPlugin(NewFileOutput, path, &Settings.OutputFileConfig)102		}103	}104	for _, options := range Settings.InputHTTP {105		plugins.registerPlugin(NewHTTPInput, options)106	}107	// If we explicitly set Host header http output should not rewrite it108	// Fix: https://github.com/buger/gor/issues/174109	for _, header := range Settings.ModifierConfig.Headers {110		if header.Name == "Host" {111			Settings.OutputHTTPConfig.OriginalHost = true112			break113		}114	}115	for _, options := range Settings.OutputHTTP {116		plugins.registerPlugin(NewHTTPOutput, options, &Settings.OutputHTTPConfig)117	}118	for _, options := range Settings.OutputBinary {119		plugins.registerPlugin(NewBinaryOutput, options, &Settings.OutputBinaryConfig)120	}121	if Settings.OutputKafkaConfig.Host != "" && Settings.OutputKafkaConfig.Topic != "" {122		plugins.registerPlugin(NewKafkaOutput, "", &Settings.OutputKafkaConfig, &Settings.KafkaTLSConfig)123	}124	if Settings.InputKafkaConfig.Host != "" && Settings.InputKafkaConfig.Topic != "" {125		plugins.registerPlugin(NewKafkaInput, "", &Settings.InputKafkaConfig, &Settings.KafkaTLSConfig)126	}127	return plugins128}...

plugins

Using AI Code Generation

1import "plugin"2func main() {3    p, err := plugin.Open("plugin.so")4    if err != nil {5        panic(err)6    }7    f, err := p.Lookup("Hello")8    if err != nil {9        panic(err)10    }11    f.(func())()12}13import "fmt"14func Hello() {15    fmt.Println("Hello, world.")16}17func main() {18    Hello()19}20import "plugin"21func main() {22    p, err := plugin.Open("plugin.so")23    if err != nil {24        panic(err)25    }26    f, err := p.Lookup("Hello")27    if err != nil {28        panic(err)29    }30    f.(func())()31}32import "fmt"33func Hello() {34    fmt.Println("Hello, world.")35}36func main() {37    Hello()38}39import "plugin"40func main() {41    p, err := plugin.Open("plugin.so")42    if err != nil {43        panic(err)44    }45    f, err := p.Lookup("Hello")46    if err != nil {47        panic(err)48    }49    f.(func())()50}51import "fmt"52func Hello() {53    fmt.Println("Hello, world.")54}55func main() {56    Hello()57}58import "plugin"59func main() {60    p, err := plugin.Open("plugin.so")61    if err != nil {62        panic(err)63    }64    f, err := p.Lookup("Hello")65    if err != nil {66        panic(err)67    }68    f.(func())()69}70import "fmt"71func Hello() {72    fmt.Println("Hello, world.")73}74func main() {75    Hello()76}77import "plugin"78func main() {79    p, err := plugin.Open("plugin.so

plugins

Using AI Code Generation

1import (2func main() {3	p, err := plugin.Open("plugin.so")4	if err != nil {5		fmt.Println(err)6	}7	sym, err := p.Lookup("Plugin")8	if err != nil {9		fmt.Println(err)10	}11	plugin, ok := sym.(func() string)12	if !ok {13		fmt.Println("unexpected type from module symbol")14	}

plugins

Using AI Code Generation

1import java.io.File;2import java.io.IOException;3import java.net.MalformedURLException;4import java.net.URL;5import java.net.URLClassLoader;6import java.util.ArrayList;7import java.util.List;8import java.util.logging.Level;9import java.util.logging.Logger;10import javax.swing.JFileChooser;11import javax.swing.filechooser.FileNameExtensionFilter;12public class Plugins extends javax.swing.JFrame {13    public Plugins() {14        initComponents();15    }16    public static void main(String args[]) {17        java.awt.EventQueue.invokeLater(new Runnable() {18            public void run() {19                new Plugins().setVisible(true);20            }21        });22    }23    @SuppressWarnings("unchecked")24    private void initComponents() {25        jLabel1 = new javax.swing.JLabel();26        jButton1 = new javax.swing.JButton();27        jLabel2 = new javax.swing.JLabel();28        jTextField1 = new javax.swing.JTextField();29        jButton2 = new javax.swing.JButton();30        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);31        jLabel1.setText("Select Plugin");32        jButton1.setText("Browse");33        jButton1.addActionListener(new java.awt.event.ActionListener() {34            public void actionPerformed(java.awt.event.ActionEvent evt) {35                jButton1ActionPerformed(evt);36            }37        });38        jLabel2.setText("Enter Class Name");39        jButton2.setText("Run");40        jButton2.addActionListener(new java.awt.event.ActionListener() {41            public void actionPerformed(java.awt.event.ActionEvent evt) {42                jButton2ActionPerformed(evt);43            }44        });45        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());46        getContentPane().setLayout(layout);47        layout.setHorizontalGroup(48            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)49            .addGroup(layout.createSequentialGroup()50                .addGap(31, 31, 31)51                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)52                    .addComponent(jLabel1)53                    .addComponent(jLabel2))54                .addGap(31, 31, 31)55                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)56                    .addComponent(jButton2)57                    .addComponent(jTextField1)58                    .addComponent(jButton1, javax.swing.GroupLayout.DEFAULT_SIZE, 91, Short.MAX_VALUE))59                .addContainerGap(154, Short.MAX_VALUE))60        );61        layout.setVerticalGroup(62            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)63            .addGroup(layout.createSequentialGroup()64                .addGap(58, 58, 58)65                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)66                    .addComponent(jLabel1)67                    .addComponent(jButton1))68                .addGap(18, 18, 18)69                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment

plugins

Using AI Code Generation

1import (2func main() {3	p, err := plugin.Open("plugin.so")4	if err != nil {5		fmt.Println(err)6	}7	add, err := p.Lookup("Add")8	if err != nil {9		fmt.Println(err)10	}11	f := add.(func(int, int) int)12	fmt.Println(f(1, 2))13}14import "C"15func Add(a, b int) int {16}17func main() {}

plugins

Using AI Code Generation

1import (2func main() {3 p, err := plugin.Open("plugin.so")4 if err != nil {5 panic(err)6 }

plugins

Using AI Code Generation

1type interfaceName interface {2   methodName1(parameter list) returnType3   methodName2(parameter list) returnType4   methodNameN(parameter list) returnType5}6import "fmt"7type Shape interface {8   area() float649}10type Circle struct {11}12type Rectangle struct {13}14func (circle Circle) area() float64 {15}16func (rectangle Rectangle) area() float64 {17}18func getArea(shape Shape) float64 {19   return shape.area()20}21func main() {22   circle := Circle{x: 0, y: 0, radius: 5}23   rectangle := Rectangle{width: 10, height: 5}24   fmt.Printf("Circle area: %f25", getArea(circle))26   fmt.Printf("Rectangle area: %f27", getArea(rectangle))28}

plugins

Using AI Code Generation

1import (2func main() {3	client := plugin.NewClient(&plugin.ClientConfig{4		Plugins: map[string]plugin.Plugin{5			"greeter": &shared.GreeterPlugin{},6		},7		Cmd: plugin.Command{8		},9	})10	rpcClient, err := client.Client()11	if err != nil {12		panic(err)13	}14	raw, err := rpcClient.Dispense("greeter")15	if err != nil {16		panic(err)17	}18	greeter := raw.(shared.Greeter)19	fmt.Println(greeter.Greet())20}21import (22func main() {23	var pluginMap = map[string]plugin.Plugin{24		"greeter": &shared.GreeterPlugin{},25	}26	plugin.Serve(&plugin.ServeConfig{27	})28}29import (30var Handshake = plugin.HandshakeConfig{31}32type Greeter interface {33	Greet() string34}35type GreeterPlugin struct {

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